• English
    • العربية
  • العربية
  • Login
  • QU
  • QU Library
  •  Home
  • Communities & Collections
  • Help
    • Item Submission
    • Publisher policies
    • User guides
    • FAQs
  • About QSpace
    • Vision & Mission
Search 
  •   Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • Search
  • Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • Search
  •      
  •  
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Search

    Show Advanced FiltersHide Advanced Filters

    Filters

    Use filters to refine the search results.

    Now showing items 11-20 of 99

    • Sort Options:
    • Relevance
    • Title Asc
    • Title Desc
    • Publication Date Asc
    • Publication Date Desc
    • Results Per Page:
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100
    Thumbnail

    Bacillus thuringiensis strain QBT220 pBtoxis plasmid structural instability enhances δ-endotoxins synthesis and bioinsecticidal activity 

    Nair, K.; Nair, Kavita; Al-Thani, Roda; Jaoua, Samir ( Academic Press , 2021 , Article)
    Bacillus thuringiensis subsp. israelensis (Bti) spherical parasporal crystal contains several insecticidal proteins used as environmentally safe alternative to toxic chemical pesticides. The exploration of a Bti strain ...
    Thumbnail

    Application of scanning electron microscopy and MALDI-TOF MS in the exploration of the parasporal insecticidal crystals of Bacillus thuringiensis strains isolated from Qatar soil 

    Al-Thani, A.; Al-Thani, Aldana; Ashfaq, Mohammad Yousaf; Al-Thani, Roda; Hassan, Zahoor Ul; Jaoua, Samir... more authors ... less authors ( Elsevier Ltd , 2022 , Article)
    Bacillus thuringiensis (Bt) plays an important role in health and agriculture due to its insecticidal activities. In this study, six Bt strains isolated from Qatar soil were used to explore their crystals morphologies and ...
    Thumbnail

    Investigation and application of Bacillus pumilus QBP344-3 in the control of Aspergillus carbonarius and ochratoxin A contamination 

    Nayla Salah, Higazy; Saleh, Aya Ehab; Hassan, Zahoor Ul; Al Thani, Roda; Migheli, Quirico; Jaoua, Samir... more authors ... less authors ( Elsevier Ltd , 2021 , Article)
    This study was designed to investigate the antifungal activity of Bacillus pumilus 344-3 against toxigenic fungi. In vitro co-incubation assay revealed that A. carbonarius AC82, A. niger AN8 and P. digitatum PD43 are most ...
    Thumbnail

    Biocontrol Activity of Bacillus megaterium BM344-1 against Toxigenic Fungi 

    Saleh, Aya Ehab; Ul-Hassan, Zahoor; Zeidan, Randa; Al-Shamary, Noora; Al-Yafei, Thoraya; Alnaimi, Hajer; Higazy, Nayla Salah; Migheli, Quirico; Jaoua, Samir... more authors ... less authors ( American Chemical Society , 2021 , Article)
    Mycotoxins are secondary metabolites of some fungal species and represent important contaminants of food and feed. This study aimed to explore the biological control activity of Bacillus megaterium BM344-1 volatile organic ...
    Thumbnail

    Evidencing the diversity and needs of adjustment of the nutritional requirements for hydrocarbon-degrading activity of: Pseudomonas aeruginosa adapted to harsh conditions using 2<sup>n</sup> full factorial design 

    Attar, Al Zahraa; Jaoua, Samir; Ahmed, Talaat A.; Al Disi, Zulfa; Zouari, Nabil ( Royal Society of Chemistry , 2017 , Article)
    To overcome the partial or complete failure of oil hydrocarbon bioremediation due to weathering processes, occurring in most oil producing and spilling areas, nutritional requirements of the most widely used bacterium, ...
    Thumbnail

    Isolation of a Novel Kluyveromyces marxianus Strain QKM-4 and Evidence of Its Volatilome Production and Binding Potentialities in the Biocontrol of Toxigenic Fungi and Their Mycotoxins 

    Alasmar, Reem; Ul-Hassan, Zahoor; Zeidan, Randa; Al-Thani, Roda; Al-Shamary, Noora; Alnaimi, Hajer; Migheli, Quirico; Jaoua, Samir... more authors ... less authors ( American Chemical Society , 2020 , Article)
    To overcome the economic losses associated with fungi and their toxic metabolites, environmentally safe and efficient approaches are needed. To this end, biological control using yeasts and safe bacterial strains and their ...
    Thumbnail

    Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium 

    Khedher, Saoussen Ben; Jaoua, Samir; Zouari, Nabil (2013 , Article)
    In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ...
    Thumbnail

    Prevalence of toxigenic fungi and mycotoxins in Arabic coffee (Coffea arabica): Protective role of traditional coffee roasting, brewing and bacterial volatiles 

    Al Attiya, Wadha; Hassan, Zahoor Ul; Al-Thani, Roda; Jaoua, Samir ( Public Library of Science , 2021 , Article)
    Fungal infection and synthesis of mycotoxins in coffee leads to significant economic losses. This study aimed to investigate the prevalence of toxigenic fungi, their metabolites, and the effect of traditional roasting and ...
    Thumbnail

    Fungal contamination and mycotoxins in aquafeed and tissues of aquaculture fishes and their biological control 

    Abdulfattah, Bashorun; Hassan, Zahoor Ul; Al-Yafei, Mehsin Al-Ansi; Jaoua, Samir ( Elsevier B.V. , 2023 , Article)
    The presence of mycotoxins in food and feed is a significant issue, especially in fish farming where it can negatively impact farmed fish species. In this study, samples of aquaculture feed and fishes tissues were collected ...
    Thumbnail

    Investigation of novel bacteriocin producers of Bacillus thuringiensis and partial characterization of two new bacteriocins: Thuricin 466 and thuricin 4Q7 

    Minoli Nitin, Doshi; Badr, Kareem; Ejaz, Muhammad; Hassan, Zahoor Ul; Jaoua, Samir ( Elsevier Ltd , 2024 , Article)
    This study assessed the bacteriocin-producing capability of 140 strains of Bacillus thuringiensis isolated from Qatar. Numerous Bt strains exhibited strong antibacterial activity against both the foodborne pathogen B. ...
    • 1
    • 2
    • 3
    • 4
    • 5
    • . . .
    • 10

    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU

     

     

    Home

    Submit your QU affiliated work

    Browse

    All of Digital Hub
      Communities & Collections Publication Date Author Title Subject Type Language Publisher
    This Community
      Publication Date Author Title Subject Type Language Publisher

    My Account

    Login

    Discover

    Author
      Jaoua, Samir (70)
    • Jaoua, Samir (29)
    • Tounsi, Slim (17) Zouari, Nabil (17) ... View More
    Type
      Article (86) Poster (8) Conference (3) Article Review (1) Other (1)
    Subject
      Bacillus thuringiensis (20) Food safety (12) Mycotoxins (8) Toxicity (8) ... View More
    Publication Date
      2020 - 2024 (30) 2010 - 2019 (69)
    Accessioned Date
      2015 (42) 2022 (11) 2017 (9) 2020 (9) 2024 (9) 2016 (6) 2021 (6) 2023 (4) 2019 (2) 2018 (1)
    Has File(s)
      No (54) Yes (45)

    About QSpace

    Vision & Mission

    Help

    Item Submission Publisher policiesUser guides FAQs

    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU